Alright, let's work through 3604 times 1123 step by step
3604 × 1123 = 1123 × (3604)
+ 1123 × 4 yielding 4492
+ 1123 × 00 giving us 0
+ 1123 × 600 yielding 673800
+ 1123 × 3000 which equals 3369000

= 4047292
